Tema:
El repositorio para Ubuntu Backports ha cambiado. Antes era:
## Backports
deb http://ubuntu-backports.mirrormax.net/ hoary-backports main universe multiverse restricted
deb http://ubuntu-backports.mirrormax.net/ hoary-extras main universe multiverse restricted
Deberá quedar asi:
## Backports
deb http://archive.ubuntu.com/ubuntu hoary-backports main universe multiverse restricted
deb http://ubuntu-backports.mirrormax.net/ hoary-extras main universe multiverse restricted